<div class="container login-content vh-100">
    <main class="form-signin justify-content-center">
      <form nz-form [formGroup]="validateForm" class="login-form" (ngSubmit)="submitForm()">
        <nz-form-item>
          <nz-form-control nzErrorTip="Please input your username!">
            <nz-input-group nzPrefixIcon="user">
              <input type="text" nz-input formControlName="username" placeholder="Username" />
            </nz-input-group>
          </nz-form-control>
        </nz-form-item>
        <nz-form-item>
          <nz-form-control nzErrorTip="Please input your Password!">
            <nz-input-group nzPrefixIcon="lock">
              <input type="password" nz-input formControlName="password" placeholder="Password" />
            </nz-input-group>
          </nz-form-control>
        </nz-form-item>

        <button nz-button class="login-form-button login-form-margin" [nzType]="'primary'">Log in</button>
        Or
        <a>register now!</a>
      </form>
    </main>
  </div>